Explain different functions of mammalian blood and for each mention the component involved.
Answer:
-Plasma; transports metabolic wastes e.g. Urea, uric acid, ammonium salts, creatinine and carbon (IV) oxide from cells to the excretory organs (e.g. kidney); for elimination from the body;
-Plasma transports hormones from the endocrine glands; to target organs;
-Plasma transports antibodies within the body; to provide immunity;
-Plasma transports nutrients from the ileum; to liver then to other parts of the body;
-Plasma transports heat around the body; hence it is important in temperature regulation;
-Red blood cells/erythrocytes; transport oxygen from the lungs; to the cells/ tissues; and carbon (IV) oxide from the tissues to the lungs;
-Plasma regulates of pH of body fluids;
-Platelets/ thrombocytes; initiate the process of blood clotting thus preventing excessive bleeding/blood loss;
-White blood cells/ leucocytes; offer protection of the body against infections;